Mus'ab ibn 'Umair

Mus'ab ibn 'Umair (596-625) was a sahabah of Muhammad who died at the Battle of Uhud.

Biography
Mus'ab ibn 'Umair was born in 596 to a wealthy family from the Banu Abd al-Dar branch of the Quraysh tribe, and he embraced Islam in 614 after Muhammad taught several people of Mecca about monotheism. Mus'ab was sent to Medina to preach Islam with Sa'd ibn Zurarah, converting people such as Sa'd ibn Muadh, Usayd ibn Khudair, and Sa'd ibn Ubadah to Islam. By September 622, Medina had 10,000 Muslims, and Mus'ab was one of the most important leaders of Islam. He fought at the Battle of Badr in 624, winning Islam's first major victory, but he was slain at the battle of Uhud in 625, being hit by a spear while carrying the Muslim banner.